*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

li {
    list-style: none;
}
a {
    text-decoration: none;
}

.clearfix::before,.clearfix::after{
    content: " ";
    display:table;
}
.clearfix::after{
    clear: both;
}



body {
    background: color #c4c4c4;
}
/*版心*/
 .wrapper {
    width: 1200px;
    margin: 0 auto;
}
/*头部*/
.header{
    height: 42px;
    
    margin: 30px auto;
}
.header h1{
    float: left;
    font-family: 楷体;
    color: rgb(101, 183, 254);
}
.nav{
   float: left;
   margin-left: 40px;
}
.nav li{
    float: left;
    margin-right: 25px;
    
}
.nav li a{
    display: block;
    height: 42px;
    line-height: 42px;
    padding:0 9px;
    color: #000;
    font: 18px #000 微软雅黑;
}
.nav li a:hover{
    color: rgb(19, 116, 253);
    border-bottom: 3px solid rgb(101, 183, 254);
}
.search{
    float: left;
    width: 412px;
    height: 40px;
    margin-left: 20px;
   border: 2px solid rgb(101, 183, 254); 
}
.search input{
    float: left;
    padding-left: 20px;
   width: 358px;
   height: 36px;
   border: 0;
}
.search input::placeholder{
    font-size: 14px;
    font-family: 微软雅黑;
    color: #bfbfbf;
}
.search button{
    float: left;
    width: 50px;
    height: 36px;
    background-color: #fff;
    border: 0;
    border-left: 2px dashed  rgb(19, 116, 253);
    color: #5a5a5a;
}
.search button:hover{
    color:rgb(19, 116, 253) ;
}
.user{
    float: right;
    height: 42px;
    line-height: 42px;
}
.user span{
    color: #3e3e3e;
   font-size: 18px;
}
.user img{
    vertical-align: middle;
}

/*轮播图*/
.banner{
    height: 420px;
}
.banner .wrapper{
    height: 420px;
    background-image: url(../images/technoiogy.jpg);
}
.banner .left{
    float: left;
    padding: 0 20px;
    line-height: 44px;

    width: 190px;
    height: 420px;
    background-color: rgba(0,0,0,0.5);
}

.banner .left a{
    font-size: 18px;
    font-family: 黑体;
    color: #fff;
}
.banner .left a:hover{
    color: rgb(19, 116, 253);
}
.banner .left span{
float: right;
color: #fff;
}

.banner .right{
    float: right;
    width: 420px;
    height: 420px;
    background-color: rgba(0, 0, 0, 0.5);
}
.banner .right h2{
    height: 48px;
    background-color: rgb(101, 183, 254);
    text-align: center;
    line-height: 48px;
    font-size: 22px;
    color: #fff;
}
.banner .right .content{
    padding: 0 18px;
}
.banner .right .content dl{
    padding: 12px 0;
    border-bottom: 1px solid #313131;
}
.banner .right .content dt a{
    font-size: 18px;
    font-family: 黑体;
    color: #fff;
}
.banner .right .content dt a:hover{
    color: rgb(19, 116, 253);
}
.banner .right .content dd{
    font-size: 12px;
    color: #bfbfbf;
}

/*通知公告*/
.notice{
margin-top: 18px;
height: 60px;
background-color: #fff;
box-shadow: 0px 2px 3px 0px rgba(118,118,118,0.2);
}
h2{
    text-align: center;
    line-height: 60px;
    font-family: 黑体;
    color: #5a5a5a;
}
/*公告内容*/
.noticecontent li{
    float: left;
    height: 228px;
    width: 270px;
    margin-right: 15px;
    margin-bottom: 15px;
}
.noticecontent ul li a{
    margin-top: 30px;
    padding: 20px;
    color: #050505;
}
.noticecontent ul li a:hover{
    color: rgb(19, 116, 253);
}
.noticecontent ul li a h3{
    padding: 20px;
}
.noticecontent ul li p{
   padding: 0 20px;
   font-size: 12px;
   color: #999;
}
.noticecontent ul li span{
    color: rgb(19, 116, 253);
}
.noticebutton{
    width: 200px;
    height: 150px;
    margin-top: 47px;
}
.noticebutton a{
    line-height: 150px;
    font-size: 22px;
    color: rgb(19, 116, 253);
}
.noticebutton a:hover{
    color: rgb(101, 183, 254);
}
/*.footer{
    height: 417px;
    margin-top: 47px;
    background-color: #fff;
}
.footer .left{
    float: left;
}
.footer .left h3{
    display: inline-block;
    width: 128px;
    height: 36px;
    text-align: center;
    line-height: 36px;

    font-family: 楷体;
    color: rgb(101, 183, 254);
}
.footer .right{
    float: right;
}
.footer .right{
    float: left;
    margin-left: 120px;
}